Looking to upgrade Switch at location with weird fiber configuration

Good Morning everyone,

I am reaching out to see if anyone has any experience in trying to make an old fiber configuration work with modern switches. We are currently using Allied Telesis switches, both with very interesting configurations. One is half-duplex, no auto-negotiation, and speed is set to 10. The otherside is full-duplex, auto-negotiation, speed 100. This is working without any issues. We tried dropping in our new Aruba switches without any custom configuration using the existing transceivers (they are supported) and no dice. I assume it has something to do with the fiber configuration on each of the ports, but Aruba does not support those previous configurations. Might just be a case of old fiber, or an old demarc, but unfortunately this is an off-site location and no documentation exists. Any help anyone can provide would be greatly appreciated!